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16-12-2020
Mathematics

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Solve the system of equations by substitution. y = 2x y = x +1

Respuesta :

16-12-2020

Step-by-step explanation:

y = 2x

y = x + 1

y-1 = x

y = 2x

y = 2 (y - 1)

y = 2y - 1

y = -1

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